Abstract:
:Leukocyte-transforming agents were isolated in baboon leukocytes inoculated with oral excretions from immunosuppressed chimpanzees. The transformed lymphoblasts had B cell surface markers and harbored herpes-type virus particles; 5-10% of the cells contained cytoplasmic antigens reactive with Epstein-Barr virus (EBV)-antibody-positive chimpanzee, human and baboon sera. These sera also neutralized the transforming activity of the chimpanzee virus. Long-term lymphoid cell lines were established from circulating lymphocytes of normal baboons: two from Papio cynocephalus and three from P. hamadryas. The cells had B cell surface markers, contained herpes-type virus particles and produced virus with leukocyte-transforming activity. No virus-associated nuclear antigen was detectable with reference baboon and chimpanzee sera; however, the cells reacted with selected human sera containing antibodies to EBV nuclear antigen (EBNA). Absorption experiments confirmed the specificity of this reaction. Baboon lymphoblasts produced baboon virus-associated soluble complement-fixing (CF/S) antigen. Baboon sera had CF antibodies to viral (CF/V) antigen derived from EBV but failed to react with EBV-associated CF/S antigen. Chimpanzee and baboon herpesviruses had similar in vitro host cell ranges but were different from those of EBV. Inoculation of baboons, rhesus monkeys and cottontop marmosets failed to produce detectable illness or palpable tumors.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Gerber P,Kalter SS,Schidlovsky G,Peterson WD Jr,Daniel MDdoi
10.1002/ijc.2910200318subject
Has Abstractpub_date
1977-09-15 00:00:00pages
448-59issue
3eissn
0020-7136issn
1097-0215journal_volume
20pub_type
杂志文章abstract::Experimental evidence suggests that vitamin D might play a role in the development of breast cancer. Although the results of case-control studies indicate that circulating 25-hydroxyvitamin D [25(OH)D] is inversely associated with the risk of breast cancer, the results of prospective studies are inconsistent. A case-c...
journal_title:International journal of cancer
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